A demo of this leaked not too long ago, but her label has taken down literally every link. If you search hard enough it can be found. This sounds like her best chance for a mainstream hit, and i'm guessing they want to release it with how they took it down everywhere.
You will probably only 'get' this if from the UK but the co-writers on this, 'The Nexus', is actually David Sneddon and his songwriting partner! Amazing song. It's from an amazing album (no matter what the US critics say).